power: rk808: rename to rk8xx
Since this driver can be used for rk8xx series pmic,
let's rename rk808 to rk8xx, to make it clear.
Configs parts are done by sed -i "s/RK808/RK8XX/g" `grep RK808 -lr ./`
Signed-off-by: Jacob Chen <jacob-chen@iotwrt.com>
diff --git a/drivers/power/pmic/rk8xx.c b/drivers/power/pmic/rk8xx.c
new file mode 100644
index 0000000..394e2ff
--- /dev/null
+++ b/drivers/power/pmic/rk8xx.c
@@ -0,0 +1,118 @@
+/*
+ * Copyright (C) 2015 Google, Inc
+ * Written by Simon Glass <sjg@chromium.org>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <errno.h>
+#include <fdtdec.h>
+#include <libfdt.h>
+#include <power/rk8xx_pmic.h>
+#include <power/pmic.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static const struct pmic_child_info pmic_children_info[] = {
+ { .prefix = "DCDC_REG", .driver = "rk8xx_buck"},
+ { .prefix = "LDO_REG", .driver = "rk8xx_ldo"},
+ { .prefix = "SWITCH_REG", .driver = "rk8xx_switch"},
+ { },
+};
+
+static int rk8xx_reg_count(struct udevice *dev)
+{
+ return RK808_NUM_OF_REGS;
+}
+
+static int rk8xx_write(struct udevice *dev, uint reg, const uint8_t *buff,
+ int len)
+{
+ int ret;
+
+ ret = dm_i2c_write(dev, reg, buff, len);
+ if (ret) {
+ debug("write error to device: %p register: %#x!", dev, reg);
+ return ret;
+ }
+
+ return 0;
+}
+
+static int rk8xx_read(struct udevice *dev, uint reg, uint8_t *buff, int len)
+{
+ int ret;
+
+ ret = dm_i2c_read(dev, reg, buff, len);
+ if (ret) {
+ debug("read error from device: %p register: %#x!", dev, reg);
+ return ret;
+ }
+
+ return 0;
+}
+
+#if CONFIG_IS_ENABLED(PMIC_CHILDREN)
+static int rk8xx_bind(struct udevice *dev)
+{
+ const void *blob = gd->fdt_blob;
+ int regulators_node;
+ int children;
+
+ regulators_node = fdt_subnode_offset(blob, dev_of_offset(dev),
+ "regulators");
+ if (regulators_node <= 0) {
+ debug("%s: %s regulators subnode not found!", __func__,
+ dev->name);
+ return -ENXIO;
+ }
+
+ debug("%s: '%s' - found regulators subnode\n", __func__, dev->name);
+
+ children = pmic_bind_children(dev, regulators_node, pmic_children_info);
+ if (!children)
+ debug("%s: %s - no child found\n", __func__, dev->name);
+
+ /* Always return success for this device */
+ return 0;
+}
+#endif
+
+static int rk8xx_probe(struct udevice *dev)
+{
+ struct rk8xx_priv *priv = dev_get_priv(dev);
+ uint8_t msb, lsb;
+
+ /* read Chip variant */
+ rk8xx_read(dev, ID_MSB, &msb, 1);
+ rk8xx_read(dev, ID_LSB, &lsb, 1);
+
+ priv->variant = ((msb << 8) | lsb) & RK8XX_ID_MSK;
+
+ return 0;
+}
+
+static struct dm_pmic_ops rk8xx_ops = {
+ .reg_count = rk8xx_reg_count,
+ .read = rk8xx_read,
+ .write = rk8xx_write,
+};
+
+static const struct udevice_id rk8xx_ids[] = {
+ { .compatible = "rockchip,rk808" },
+ { .compatible = "rockchip,rk818" },
+ { }
+};
+
+U_BOOT_DRIVER(pmic_rk8xx) = {
+ .name = "rk8xx pmic",
+ .id = UCLASS_PMIC,
+ .of_match = rk8xx_ids,
+#if CONFIG_IS_ENABLED(PMIC_CHILDREN)
+ .bind = rk8xx_bind,
+#endif
+ .probe = rk8xx_probe,
+ .ops = &rk8xx_ops,
+};